Resawing band-mill.



PATENTED JAN. 30, 1906.

J. WALTON.

RESAWING BAND MILL.

APPLIOATIOH FILED SBPT.22, 1904.

WI TNESS'ES:

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specification of Letters Patent.

Patented Jan. 30, 1996.

. kpplloation filed Elcptembcr 22, 1804' Serial No. 225.433.

Be it known that ,5", JOHN fil er/row, a lll'l 3 zen oi the linitedStates, residing at lililo'uuher, in the county oi Milwaukee and Stateof Viscousm, have invented (7(ll'z'llil new and useful improvements inlicsawing Band-- Mills, of which the following is a specification,

reference being" had to the acrompnnyiu; drawings, forming" a partthereof.

.This invention relates more particularly to single-cutting horizontalluuul-rrsaws. its ob ect Is to increase the capacity and to sun plifyand improve the construction and operation of this class of mills.

It consists in certain novel features oi con struction and in thepeculiar arrangement and combinations of parts hereinafter particularlydescribed, and pointed out in the claims.

In the accompanying drawings like charactors designate the same parts inthe several figures.

Figure 1 is a plan View of essential parts of a resawing band-millembodying the invcn tion, certain parts being omitted, broken away, orshown in section. Fig. 2 is a side elevation of the same as viewed fromthe right with reference to Fig. 1, and Fig. 3 is a front end elevationof the machine.

a designates a band-saw having teeth on one edge only. It is mountedll)OI1 band-wheels b b, of the usual or any suita le construction, whichare arran cd to carry the lower side or working span 0 the sawhorizontally, The shafts ofthc band-wheel are provided with suitablebearings c c in a frame d, and the usual or any suitable provision ismade for stretching the saw and maintaining; the proper tension on theworking side or span thereof. Power to operate t e saw is apwlicdthereto through a pulley on one of t is band-wheel shafts, as indicated.lay dotted lines on Fig. 3, or through any convenient and suitabledriving connection. her or material to be sawed is fed to the Workingside of the saw, preferably the lower span, by any suitable means. Anendless flexible table or conveyor 6, carried transversely to and belowthe lower span of the saw on drums or rollers at the ends of avertically-umvablc l'ramef, is shown for this purpose.

The frame 1" is supported at the ends by links 9', which may be set atdifferent angles to a perpendicular by means of the lever h l l l I l 1l l l i l l l l i The firm i and quadrant i to adjust the table orconreycr to diil'crcnt vertical positions For sawingr hoards or lumberoi dill'erent thicknesses.

The shaft of the drum or rollers at one end of the table or convcyer isshown in Fig. 1 as )rovirlcd with a pulley 'iior driving said ta- )le orconveyor in the direction indicated by the arrow thereon A series of"rollers l: and. a similar series of rollers tare arranged at the fronte'ud rear ends of the table or conveycr e to sup )ort the lumber orililili-llfill as it is delirercd to and f om the saint. A. series oilive rollers m, driven by any suitable means, ceivc and conduct away theboards they are sawed from the under side of the pieccsoi timber by theaw o and delivcrwl by the con-- vcyer 2 upon the rolls Alon side of theconveyor .2 and the receiving am delivering rollers .l: and Z a seriesof rollers n, o, and p are arranged to receive the timber or materiel tohe resa u'cd from the roll ers Z and return it over the working span oithe saw to the rollers l and the receiving end. oi said conveyor. Theupper sides ,ol. the rollers 11 are set approximately in the plane or atthe level of the, working" s pan or lower side of the saw a, while therollers 0, which are arranged on both sides oi the saw, and the rollersproject slightly above the some. The rollgrs n and 0 are turnedsimultaneously in the roper direction by herelgears q mounted on a lonitudinal fced-shaft r an meshing with sirm ar'gcars s on therollershafts, and the rollers 72 are driven by means of like or similargears on a shaft l, which is connected end to end with the shalt r by aclutch u.

The rollers 39 are formed or provided on their peripheries with screwsor spirals which are adapted to more the lumber or material. thereonsidewisc toward the rollers I; and the conveyor 6. in frontal thescrewuollels p a slanting or oblique stop o is arranged to arrest thecndwise movement of the returningtiinbcr or material and direct it as itis moved sidcwise by said rollers to and upon the rollers l2 andconveyer c.

The mill hercinhefore described operates as follows: A piece of timberto be sawed is placed on. the rcceivingrollers and the front end of thetravclin table or conveyor 6, by which it is feel cndwise to and againstthe saw and delivered, with the board cut from the is also providedbeyond the rollers l to re-- under side thereof, to and upon the rollersl.

After it has cleared the saw the piece to be resawed isturned over byhand or by other means (not shown) upon the rollers a, while the boardpasses upon and is conducted of? by the live rollers m. The piece to heresawed is moved endwise by the live returnrollers it upon the rollers0, which lift it above and carry it over the lower side or span of thesaw and deliver it against the slanting stop upon the screw-rollers p,which, if they are in operation, move it sidewise to and upon therollers la and eonveyer e in position to be again fed to the saw in then'ianner above explained. In ease another piece is being sawed at thetime the piece returned may he held on the screw-rollers p until theconveyer e is ready to receive it by s'lisengagiru-g the clutch at.

Various changes in detrils of construction and arrangement of parts maybe made with out departing from the pi nple and intended scope of theinvention.

1. In a resawing band-mill the ()Olllblfld tion with the band-Wheels andthe saw having its working span between said wheels horizontallydisposed, a vertically-adjustable feedingconveyer arranged and movabletransversely to the saw and a returning-conveyer arranged alongside ofthe trawling-corn veyer with its receiving end approximately at thelevel of the delivery end of the feeding;

conveyor and its delivery end ahove the re ceiving end of saidfeeding-conveyor and adapted to elevate and return the material tobe-resawed over the working span of the saw, substantially as described.

2. In a resawing band-mill the combination with the saw and itscarrying-wheels, of means for feeding the material to the lower s an ofthe saw, means arranged alongside of the feeding means for returning themateriel to* be resawed between. said wheels and between and out ofcontact with tile spa s of the saw, substantially as described.

3. In a resawing hand mill the combination'with the band-w ieelsand thesaw mounted thereon with its spans horizontally disposed, of meansadapted to feed the material to be sawed to the lower span of the sawand 'Incans arranged alongside of said feeding means and adapted toreturn the material to be resawed over and out of contact with the lowerspan of the saw and between the band wheels, substantially as described.

4. In a resawing hand-mill the combina tion. with ahorizontally-disposed handsaw, its carrying-wheels and afeeding-conveyer arranged and movable transverse] y to the saw, of meansfor returning the material to he resawed over the working span of thesaw between the band-wheels and for delivering it sidewise to thereceiving end of said conveyer, substantially as described.

5. In a resawing band-mill the combina tion with the band-wheels and theband-saw having ranged horizontally, of avertically-adjustfeeding-conveyer arranged below and transversely to thelower span of the saw. a series of rollers arranged alongside of saidconveyer and adapted to return the material to be resawed over the lowerspan of the saw to the receiving end of said conveyer, the upper sidesoi the rollers adjacent to the saw projecting above the plane of itslower span, substantial described.

, 6. In a revolving hand-mill the combination with ahoriaontally-disposed band-saw and its supporting and driving wh els, ofa series of rollers for returning the material tb be resawed over theworking span of the saw to the feedinwpoint, the rollers at the rear endof the series having their upper sides approximately on a level with theworking span of the saw, the rollers on each side of the sawprojeeting'ahove said level and the rollers at the front end of theseries having screws or spirals adapted to move the returning materialsidewise into iosition to be fed to the saw, substant ally as desrrihed.

7 ln a resawing hand-mill the eomhination with the saw and itscarrying-wheels arranged to support the working span of the saw in ahorizontal position, of a feeding;- eonveyer arranged transversely tothe saw, a series of rollers arranged alongsideol said conveyer toreturn the material to be resawed over the working s'ianof the sawto thestarting-point, the rollers at the front end of the its spans betweensaid wheels ar-- series having screws or spirals adapted to move thematerial sidewise to the receiving end of said eonveyer, and a slantingstop in front of the screw-rollers, snbstantially as described.

3. in a resawing band-mill the combination "1th the saw and itscarrying-Wheels arranged to suppo t the working span oi the sawhorizonta of means for feeding material to the saw, a series oi rollersfor returningthe material to be resawed to the starting-point, thefrontrollers of the series having serews or irals for moving the returningmaterial sioewise to the feeding means, means for turning said rollersand means for connecting and disconnecting the serew-roll with thedriving; means will, substantially as described.

itness whereof l hereto aii'ix my signature in presence of twowitnesses.

Witnesses:

Cues. L. Goes, ANNIE Serena

